JP3142449U

JP3142449U - Packaging box

Info

Publication number: JP3142449U
Application number: JP2008002020U
Authority: JP
Inventors: 大成高藤
Original assignee: 株式会社クラウン・パッケージ
Priority date: 2008-04-02
Filing date: 2008-04-02
Publication date: 2008-06-12
Anticipated expiration: 2018-04-02

Abstract

【課題】組立て状態と折畳み状態との間での変形を繰り返して使用しても底部を損傷することがなく、かつ、底部の強度を十分維持することができる包装箱を提供する。
【解決手段】包装箱Ａの底部は、２つの第１フラップ４０と第２フラップ６０、６２により構成され、第１フラップ４０は、フラップ本体４４と突出片部４８とで構成され、第１フラップ４０に形成された切欠部５０は、フラップ本体４４と突出片部４８間の折れ線４８ｇの延長線である傾斜辺部４４ｃと、突出片部４８における折れ線４４ａと直角をなす２つの辺部４８ｂ、４８ｆのうち内側に位置する辺部４８ｂにより構成されている。傾斜辺部４４ｃと辺部４８ｂとは約４５度の角度をなしている。
【選択図】図６The present invention provides a packaging box that does not damage the bottom even when repeatedly used between the assembled state and the folded state, and can maintain the strength of the bottom sufficiently.
A bottom portion of a packaging box A is constituted by two first flaps 40 and second flaps 60, 62. The first flap 40 is constituted by a flap body 44 and a projecting piece 48, and the first flap is formed. The notch 50 formed in 40 includes an inclined side portion 44c that is an extension of a fold line 48g between the flap body 44 and the protruding piece portion 48, and two side portions 48b that are perpendicular to the fold line 44a in the protruding piece portion 48, It is comprised by the side part 48b located inside 48f. The inclined side portion 44c and the side portion 48b form an angle of about 45 degrees.
[Selection] Figure 6

Description

本考案は、包装箱に関するものであり、特に、使用時に胴部を形成することにより同時に底部が形成される包装箱の底部の構造に関するものである。 The present invention relates to a packaging box, and more particularly to a structure of a bottom portion of a packaging box in which a bottom portion is formed at the same time by forming a body portion during use.

従来より、図１０〜図１４に示すような構成の包装箱が存在する。この包装箱は、インターロック式と呼ばれるものであり、胴部を形成すると同時に底部が形成されるものであり、包装箱Ｂは、正面部１１０と、右側面部１１２と、支持フラップ１１３と、左側面部１１４と、支持フラップ１１５と、背面部１１６と、糊代部１１８と、上面部１２０と、差込み片部１２２と、底部１３０とを有している。この包装箱Ｂは、１枚のシート状のブランク（具体的には、段ボール製（例えば、薄型段ボール製）のブランク）により形成されている。 Conventionally, there is a packaging box configured as shown in FIGS. This packaging box is called an interlock type, and forms a body portion and a bottom portion at the same time. A packaging box B has a front portion 110, a right side surface portion 112, a support flap 113, and a left side. It has a surface portion 114, a support flap 115, a back surface portion 116, an adhesive margin portion 118, an upper surface portion 120, an insertion piece portion 122, and a bottom portion 130. The packaging box B is formed of a single sheet-like blank (specifically, a blank made of cardboard (for example, a thin cardboard)).

正面部１１０と右側面部１１２と左側面部１１４と背面部１１６は、それぞれが包装箱Ｂの側面を形成し、方形状の板状を呈している。また、糊代部１１８が右側面部１１２の内側に接着されて、正面部１１０と右側面部１１２と左側面部１１４と背面部１１６によりスリーブ状部１０５が形成される。 The front part 110, the right side part 112, the left side part 114, and the back part 116 each form a side surface of the packaging box B and have a rectangular plate shape. Also, the margin portion 118 is bonded to the inside of the right side surface portion 112, and the front surface portion 110, the right side surface portion 112, the left side surface portion 114, and the back surface portion 116 form the sleeve-like portion 105.

また、上面部１２０は、背面部１１６の上端から折れ線を介して連設され、方形状を呈している。差込み片部１２２は、上面部１２０の先端から折れ線を介して連設され、スリーブ状部１０５の開口部を上面部１２０により閉じる際に、正面部１１０の内側に差し込まれる。 Moreover, the upper surface part 120 is connected from the upper end of the back surface part 116 via a broken line, and has a rectangular shape. The insertion piece 122 is connected from the tip of the upper surface portion 120 via a broken line, and is inserted into the front portion 110 when the opening of the sleeve-like portion 105 is closed by the upper surface portion 120.

また、底部１３０は、一対の第１フラップ１４０と、一対の第２フラップ１６０とから構成され、第１フラップ１４０と第２フラップ１６０とは、スリーブ状部１０５を構成する各部における相対する部材の下辺に連設されていて、第１フラップ１４０は、正面部１１０の下辺から折れ線を介して連設されているともに、背面部１１６の下辺から折れ線を介して連設されており、第２フラップ１６０は、右側面部１１２の下辺から折れ線を介して連設されているとともに、左側面部１１４の下辺から折れ線を介して連設されている。２つの第１フラップ１４０は、同大同形状に形成され、２つの第２フラップ１６０は、同大同形状に形成されている。 The bottom portion 130 includes a pair of first flaps 140 and a pair of second flaps 160, and the first flaps 140 and the second flaps 160 are opposed members in the respective portions constituting the sleeve-like portion 105. The first flap 140 is connected to the lower side through the broken line from the lower side of the front part 110, and is connected to the lower side of the back part 116 through the broken line. 160 is continuous from the lower side of the right side surface part 112 via a broken line, and is connected from the lower side of the left side surface part 114 via a broken line. The two first flaps 140 are formed in the same shape, and the two second flaps 160 are formed in the same shape.

ここで、正面部１１０から折れ線を介して連設された第１フラップ１４０を例にとって説明すると、第１フラップ１４０は、略台形形状を有するフラップ本体１４２と、フラップ本体１４２の一方の傾斜辺から折れ線を介して連設されている突出片部１４８とを有している。 Here, the first flap 140 connected from the front part 110 via a broken line will be described as an example. The first flap 140 includes a flap body 142 having a substantially trapezoidal shape and one inclined side of the flap body 142. And a projecting piece portion 148 connected through a broken line.

このフラップ本体１４２は、台形形状をなす台形状部１４４と、台形状部１４４の一方の傾斜辺から突出した略台形形状の突出片部１４６とを有している。 The flap body 142 includes a trapezoidal portion 144 having a trapezoidal shape, and a substantially trapezoidal protruding piece portion 146 protruding from one inclined side of the trapezoidal portion 144.

すなわち、台形状部１４４は、正面部１１０との境界をなす基端辺部１４４ａと、該基端辺と平行をなす先端辺部１４４ｂと、基端辺部１４４ａと先端辺部１４４ｂとの間を結ぶ傾斜辺部１４４ｃ、１４４ｄに囲まれた形状を呈し、傾斜辺部１４４ｃは、正面部１１０と右側面部１１２の境界線の下端位置又はその近傍から基端辺に対して約４５度の角度をなして形成され、この傾斜辺部１４４ｃは、フラップ本体１４２と突出片部１４８との間の折れ線上に形成されているといえる。 In other words, the trapezoidal portion 144 includes a base end side portion 144a that forms a boundary with the front portion 110, a tip end side portion 144b that is parallel to the base end side, and a base end side portion 144a and a tip end side portion 144b. The inclined side portion 144c has a shape surrounded by the inclined side portions 144c and 144d, and the inclined side portion 144c has an angle of about 45 degrees with respect to the base end side from or near the lower end position of the boundary line between the front portion 110 and the right side portion 112. It can be said that the inclined side portion 144c is formed on a broken line between the flap body 142 and the protruding piece portion 148.

また、突出片部１４６は、台形状部１４４の傾斜辺１４４ｃにおける突出片部１４８形成領域よりも先端側に形成され、略台形形状を呈し、傾斜辺部１４４ｃ上の基端辺部１４６ａと、基端辺部１４６ａと相対し基端辺部１４６ａと略平行な先端辺部１４６ｂと、先端辺部１４４ｂの延長線をなす辺部１４６ｃと、基端辺１４４ａと直角をなす辺部１４６ｄとで囲まれた形状を呈している。台形状部１４４と突出片部１４６とは一体に形成されている。 In addition, the protruding piece 146 is formed on the tip side of the protruding piece portion 148 formation region in the inclined side 144c of the trapezoidal portion 144, has a substantially trapezoidal shape, and has a base end side portion 146a on the inclined side portion 144c, A distal end side 146b that faces the proximal end side 146a and is substantially parallel to the proximal end side 146a, a side 146c that forms an extension of the distal end side 144b, and a side 146d that forms a right angle with the proximal end 144a. It has an enclosed shape. The trapezoidal portion 144 and the protruding piece portion 146 are integrally formed.

また、突出片部１４８は、フラップ本体１４２の台形状部１４４の傾斜辺部１４４ｃから突出して形成され、六角形状をなし、辺部１４８ａ〜１４８ｅ及び１４４ｃに囲まれた形状をなし、特に、突出片部１４６に隣接し、傾斜辺部１４４ｃから伸びた辺部１４８ａは、基端辺部１４４ａと平行をなし、辺部１４８ａに延設された辺部１４８ｂは、辺部１４８ａに対して約４５度をなし、辺部１４８ｃは、基端辺部１４４ａと略平行となっている。 Further, the protruding piece 148 is formed to protrude from the inclined side portion 144c of the trapezoidal portion 144 of the flap body 142, has a hexagonal shape, is surrounded by the side portions 148a to 148e and 144c, and particularly protrudes. A side part 148a adjacent to the piece part 146 and extending from the inclined side part 144c is parallel to the base end side part 144a, and a side part 148b extending from the side part 148a is about 45 with respect to the side part 148a. The side 148c is substantially parallel to the base end side 144a.

以上のような構成とすることにより、突出片部１４８と突出片部１４６との間には、大きな切欠部１５０が形成され、さらに、その奥側に小さな切欠部１５２が形成され、この切欠部１５２は、傾斜辺部１４６ｄと辺部１４８ａと辺部１４８ｂにより囲まれた形状となっている。傾斜辺部１４６ｄと辺部１４８ｂとは約４５度をなしていることになる。 With the above configuration, a large notch 150 is formed between the projecting piece 148 and the projecting piece 146, and a small notch 152 is formed on the back side. 152 has a shape surrounded by the inclined side portion 146d, the side portion 148a, and the side portion 148b. The inclined side portion 146d and the side portion 148b form about 45 degrees.

背面部１１６から折れ線を介して連設された第１フラップ１４０も正面部１１０から折れ線を介して連設された第１フラップ１４０と同様の構成である。 The first flap 140 provided continuously from the back surface part 116 via a broken line has the same configuration as the first flap 140 provided continuously from the front part 110 via a broken line.

また、第２フラップ１６０は、略台形形状を呈し、特に、一方の傾斜辺部１６０ａは、第２フラップ１６０と右側面部１１２との境界線である折れ線と約４５度の角度をなし、また、他方の傾斜辺部１６０ｂは、第２フラップ１６０と右側面部１１２との境界線である折れ線と４５度よりも大きい角度をなしている。 Further, the second flap 160 has a substantially trapezoidal shape, and in particular, one inclined side portion 160a forms an angle of about 45 degrees with a broken line that is a boundary line between the second flap 160 and the right side surface portion 112, and The other inclined side portion 160b forms an angle larger than 45 degrees with a broken line that is a boundary line between the second flap 160 and the right side surface portion 112.

包装箱Ｂにおいては、突出片部１４８の上面側が第２フラップ１６０の下面に接着され、特に、突出片部１４８の辺部１４８ｂが傾斜辺部１６０ａと略平行になるように接着される。 In the packaging box B, the upper surface side of the protruding piece portion 148 is bonded to the lower surface of the second flap 160, and in particular, the side portion 148b of the protruding piece portion 148 is bonded so as to be substantially parallel to the inclined side portion 160a.

包装箱Ｂが組み立てられている状態では、図１０、図１１に示すように、第１フラップ１４０の切欠部１５２同士が互いに掛止した状態となっていて、底部１３０を強固に平面状に維持している。そして、図１０に示すように、２つの傾斜辺部１４４ｃ（つまり、フラップ本体１４２と突出片部１４８間の折れ線）は略一直線状をなすとともに、図１１に示すように、一対の突出片部１４６において、一方の突出片部１４６の先端辺部１４６ｂが他方の突出片部１４６の先端辺部１４６ｂよりも奥側に位置し、２つの突出片部１４６は、平面視した場合に、ともに、底部１３０における角部Ｗ１（背面部１１６と左側面部１１４の境界線の下端位置の角部）と角部Ｗ２（正面部１１０と右側面部１１２の境界線の下端位置の角部）を結んだ直線よりも突出して位置することになる。 In a state where the packaging box B is assembled, as shown in FIGS. 10 and 11, the notches 152 of the first flap 140 are in a state of being hooked with each other, and the bottom 130 is firmly maintained in a flat shape. is doing. As shown in FIG. 10, the two inclined side portions 144c (that is, the fold line between the flap main body 142 and the protruding piece portion 148) form a substantially straight line, and as shown in FIG. 11, a pair of protruding piece portions 146, the leading edge 146b of one protruding piece 146 is located on the back side of the leading edge 146b of the other protruding piece 146, and the two protruding pieces 146 are both in plan view. A straight line connecting the corner W1 (the corner at the lower end position of the boundary line between the back surface portion 116 and the left side surface portion 114) and the corner portion W2 (the corner portion at the lower end position of the boundary line between the front surface portion 110 and the right side surface portion 112) in the bottom portion 130. Rather than projecting.

包装箱Ｂにおいて、組立て状態から折り畳み状態にするには、スリーブ状部１０５を折り畳むことにより、底部１３０を構成する各部がスリーブ状部１０５の内部に畳まれた状態となる。その際、第１フラップ１４０においては、突出片部１４８がフラップ本体１４２に対して折れ線を介して折曲した状態となる。 In the packaging box B, in order to change from the assembled state to the folded state, by folding the sleeve-like portion 105, each part constituting the bottom portion 130 is folded into the sleeve-like portion 105. In that case, in the 1st flap 140, the protrusion piece part 148 will be in the state bent via the broken line with respect to the flap main body 142. FIG.

また、特許文献１に記載の包装箱においては、第１の逃げ用折目線２０、２５と第２の逃げ用折目線２１、２６を設けることによって、第１フラップ７、８の傾動を円滑に行なう点が開示されている。
特開平８−１５６９３０号公報 Moreover, in the packaging box described in Patent Document 1, the first flaps 7 and 8 are smoothly tilted by providing the first escape fold lines 20 and 25 and the second escape fold lines 21 and 26. What to do is disclosed.
JP-A-8-156930

しかし、図１０〜図１４に示す包装箱Ｂにおいては、第１フラップ１４０の切欠部１５２同士が互いに掛止した状態となり、２つの突出片部１４６は、ともに、底部１３０における角部Ｗ１（背面部１１６と左側面部１１４の境界線の下端位置の角部）と角部Ｗ２（正面部１１０と右側面部１１２の境界線の下端位置の角部）を結んだ直線よりも突出して位置しているので、包装箱Ｂを組立て状態と折畳み状態との間で変形させた場合に、一対の突出片部１４６が互いに強く接触し（図１２参照）、組立て状態と折畳み状態との間で何度も変形させて繰返し使用した場合に、突出片部１４６が大きく損傷してしまうという問題があり、特に、組立て状態から折畳み状態に変形する際には、組立て状態において一対の切欠部１５２同士が掛止しているので、その掛止を解除するように操作しなければならず、その際に、突出片部１４６における切欠部１５２側の端部が特に損傷してしまうという問題があり、組立て状態と折畳み状態との間で繰り返し使用することができないという問題があった。 However, in the packaging box B shown in FIGS. 10 to 14, the cutout portions 152 of the first flap 140 are in a state of being hooked with each other, and the two protruding piece portions 146 are both corners W <b> 1 (back surface) of the bottom portion 130. The corner 116 at the lower end position of the boundary line between the portion 116 and the left side surface portion 114) and the corner portion W2 (the corner portion at the lower end position of the boundary line between the front portion 110 and the right side surface portion 112) are located so as to protrude from the straight line. Therefore, when the packaging box B is deformed between the assembled state and the folded state, the pair of protruding pieces 146 come into strong contact with each other (see FIG. 12), and many times between the assembled state and the folded state. When repeatedly deformed and used repeatedly, there is a problem in that the protruding piece 146 is greatly damaged. Particularly, when the deformed state is changed from the assembled state to the folded state, the pair of notch portions 152 are latched in the assembled state. Shi Therefore, there is a problem that the end of the projecting piece 146 on the side of the notch 152 is particularly damaged, and the assembled state and the folded state must be operated. There was a problem that it could not be used repeatedly.

また、特許文献１に記載の包装箱においては、第１の逃げ用折目線２０、２５と第２の逃げ用折目線２１、２６を設けることによって、第１フラップ７、８の傾動を円滑に行なうようにしているが、逃げ用折目線が設けられているために包装箱の底部の強度が弱くなるという問題があった。 Moreover, in the packaging box described in Patent Document 1, the first flaps 7 and 8 are smoothly tilted by providing the first escape fold lines 20 and 25 and the second escape fold lines 21 and 26. However, there is a problem that the strength of the bottom of the packaging box is weakened because the crease line for escape is provided.

そこで、本考案が解決しようとする問題点は、組立て状態と折畳み状態との間での変形を繰り返して使用しても底部を損傷することがなく、かつ、底部の強度を十分維持することができる包装箱を提供することである。 Therefore, the problem to be solved by the present invention is that the bottom is not damaged even when the deformation between the assembled state and the folded state is repeatedly used, and the strength of the bottom is sufficiently maintained. It is to provide a packaging box that can.

本考案は上記問題点を解決するために創作されたものであって、第１には、包装箱であって、包装箱の側面を形成するスリーブ状部で、方形状の第１側板部と、第１側板部の側端に折れ線を介して連設された方形状の第２側板部と、第２側板部の側端に折れ線を介して連設された方形状の第３側板部と、第３側板部の側端に折れ線を介して連設された方形状の第４側板部とを有し、包装箱の組立て状態では、該第１側板部と該第２側板部と該第３側板部と該第４側板部とでスリーブ状に形成されたスリーブ状部と、該第１側板部の下端から折れ線を介して連設された第１片部と、該第２側板部の下端から折れ線を介して連設された第２片部と、該第３側板部の下端から折れ線を介して連設された第３片部と、該第４側板部の下端から折れ線を介して連設された第４片部と、を有し、該第１片部と第３片部とが、側板部との境界をなす折れ線である基準折れ線を介して連設され、該基準折れ線に対して鋭角の角度をなし隣接する側板部である隣接側板部との境界線の下端位置又はその近傍から伸びた直線状の傾斜辺部を有する本体部と、本体部から該傾斜辺部の一部である折れ線を介して連設され、該基準折れ線に対して直角をなす互いに平行で直線状の２つの辺部を有する突出片部とを有し、基準折れ線の反対側に、突出片部の該平行な直線状の２つの辺部のうち内側に位置する辺部と該傾斜辺部とを有する切欠部で、切欠部を構成する辺部のうち互いに隣接する辺部が１８０度未満の角度をなす切欠部を有し、
第１片部の突出片部が、その隣接側板部の下端から連設された片部で、第２片部と第４片部のいずれか一方の片部と接着され、第３片部の突出片部が、その隣接側板部の下端から連設された片部で、第２片部と第４片部のいずれか他方の片部と接着されており、
包装箱を組み立てた状態では、第１片部の切欠部と第２片部の切欠部とが互いに掛止することにより包装箱の底部が構成されることを特徴とする。 The present invention was created to solve the above-described problems. First, a packaging box, which is a sleeve-shaped portion that forms the side surface of the packaging box, includes a rectangular first side plate portion and A rectangular second side plate connected to the side end of the first side plate portion via a broken line; and a square third side plate portion connected to the side end of the second side plate portion via a broken line; A rectangular fourth side plate connected to the side end of the third side plate via a broken line, and in the assembled state of the packaging box, the first side plate, the second side plate, and the second side plate A sleeve-like portion formed in a sleeve shape by the three-side plate portion and the fourth-side plate portion, a first piece portion continuously provided from the lower end of the first-side plate portion via a broken line, and the second-side plate portion A second piece continuous from the lower end via a broken line, a third piece continuous from the lower end of the third side plate via a broken line, and a broken line from the lower end of the fourth side plate A first piece portion and a third piece portion connected via a reference fold line that is a fold line that forms a boundary with the side plate portion, and the reference piece A main body portion having a linear inclined side portion extending from or near the lower end position of the boundary line with the adjacent side plate portion that is an adjacent side plate portion that forms an acute angle with respect to the broken line, and the inclined side portion extends from the main body portion. A projecting piece portion having two parallel and straight sides perpendicular to the reference folding line and projecting on the opposite side of the reference folding line. Of the two parallel straight sides of one piece, a notch having a side located on the inside and the inclined side, and of the sides constituting the notch, the sides adjacent to each other are 180 degrees. Having a notch with an angle less than
The protruding piece portion of the first piece portion is a piece portion continuously provided from the lower end of the adjacent side plate portion, and is bonded to one of the second piece portion and the fourth piece portion, and the third piece portion The protruding piece portion is a piece continuously provided from the lower end of the adjacent side plate portion, and is bonded to the other piece portion of the second piece portion and the fourth piece portion,
In a state where the packaging box is assembled, the bottom portion of the packaging box is configured by the cutout portion of the first piece portion and the cutout portion of the second piece portion being engaged with each other.

この第１の構成の包装箱においては、組立て状態から折り畳み状態にするには、スリーブ状部を折り畳むことにより、底部を構成する各部がスリーブ状部の内部に畳まれた状態となる。一方、包装箱を折り畳んだ状態から組立て状態にするには、スリーブ状部における隣接する部材が互いに直角となるようにして、開口部を四角形状に形成する。 In the packaging box having the first configuration, in order to change from the assembled state to the folded state, by folding the sleeve-like portion, each portion constituting the bottom portion is folded into the sleeve-like portion. On the other hand, in order to change the packaging box from the folded state to the assembled state, the openings are formed in a square shape so that adjacent members in the sleeve-shaped portion are at right angles to each other.

本考案の包装箱においては、切欠部を構成する傾斜辺部が本体部と突出片部の間の折れ線の延長線上にあり、包装箱が組み立てられている状態では、本体部の傾斜辺部は略一直線状をなすので、組立て状態と折り畳み状態との間で変形するに際して、傾斜辺部同士は接触するものの、強く接触することがなく、本体部における傾斜辺部の領域が損傷することがなく、組立て状態と折り畳み状態との間で繰り返し変形しても第１片部と第３片部の本体部が損傷することがない。 In the packaging box of the present invention, the inclined side part constituting the notch part is on the extension line of the broken line between the main body part and the protruding piece part, and in the state where the packaging box is assembled, the inclined side part of the main body part is Since it is substantially straight, when it is deformed between the assembled state and the folded state, the inclined sides come into contact with each other, but they do not come into strong contact with each other, and the region of the inclined side in the main body is not damaged. Even if it is repeatedly deformed between the assembled state and the folded state, the main body of the first piece and the third piece will not be damaged.

また、第１片部と第３片部における切欠部において、突出片部の該平行な直線状の２つの辺部のうち内側に位置する辺部と傾斜辺部とは、鋭角をなしているので、包装箱の組立て状態においても第１片部と第３片部とが互いに強く掛止され、底部の強度が弱くなることがない。 Moreover, in the notch part in the 1st piece part and the 3rd piece part, the side part located inside and the inclined side part of the two parallel straight sides of the protruding piece part form an acute angle. Therefore, even in the assembled state of the packaging box, the first piece portion and the third piece portion are firmly hooked to each other, and the strength of the bottom portion is not weakened.

また、第２には、上記第１の構成において、スリーブ状部を構成する第１側面部と第２側面部と第３側面部と第４側面部の横方向の幅が同一であり、第１片部において、傾斜辺部が第１折れ線に対して約４５度の角度をなし、第２片部において、傾斜辺部が第２折れ線に対して約４５度の角度をなすことを特徴とする。 Second, in the first configuration, the lateral widths of the first side surface portion, the second side surface portion, the third side surface portion, and the fourth side surface portion constituting the sleeve-like portion are the same, and In one piece, the inclined side portion forms an angle of about 45 degrees with respect to the first broken line, and in the second piece portion, the inclined side portion forms an angle of about 45 degrees with respect to the second broken line. To do.

また、第３には、上記第１又は第２の構成において、第１片部の第１本体部と第２片部の第２本体部とは、台形形状を呈することを特徴とする。 Thirdly, in the first or second configuration, the first main body portion of the first piece portion and the second main body portion of the second piece portion have a trapezoidal shape.

また、第４には、包装箱であって、包装箱の側面を形成するスリーブ状部で、方形状の第１側板部と、第１側板部の側端に折れ線を介して連設された方形状の第２側板部と、第２側板部の側端に折れ線を介して連設された方形状の第３側板部と、第３側板部の側端に折れ線を介して連設された方形状の第４側板部とを有し、第１側面部と第２側面部と第３側面部と第４側面部の横方向の幅が同一であり、包装箱の組立て状態では、該第１側板部と該第２側板部と該第３側板部と該第４側板部とでスリーブ状に形成されたスリーブ状部と、該第１側板部の下端から折れ線を介して連設された第１片部と、該第２側板部の下端から折れ線を介して連設された第２片部と、該第３側板部の下端から折れ線を介して連設され、第１辺部と同一の形状及び大きさに形成された第３片部と、該第４側板部の下端から折れ線を介して連設された第４片部と、を有し、該第１片部と第３片部とが、側板部との境界をなす折れ線である基準折れ線を介して連設され、該基準折れ線に対して約４５度の角度をなし隣接する側板部である隣接側板部との境界線の下端位置又はその近傍から伸びた直線状の傾斜辺部と基準折れ線の反対側に第１折れ線と平行な辺部とを有する台形形状の本体部と、本体部から該傾斜辺部の一部である折れ線を介して連設され、該基準折れ線に対して直角をなす互いに平行で直線状の２つの辺部と基準折れ線の反対側に基準折れ線と平行な辺部とを有する突出片部とを有し、基準折れ線の反対側に、突出片部の該平行な直線状の２つの辺部のうち内側に位置する辺部と該傾斜辺部とを有する切欠部で、切欠部を構成する辺部のうち互いに隣接する辺部が１８０度未満の角度をなす切欠部を有し、第１片部の突出片部が、その隣接側板部の下端から連設された片部で、第２片部と第４片部のいずれか一方の片部と接着され、第３片部の突出片部が、その隣接側板部の下端から連設された片部で、第２片部と第４片部のいずれか他方の片部と接着されており、包装箱を組み立てた状態では、第１片部の切欠部と第２片部の切欠部とが互いに掛止することにより包装箱の底部が構成されることを特徴とする。 The fourth is a packaging box, which is a sleeve-like portion that forms the side surface of the packaging box, and is connected to the rectangular first side plate portion and the side end of the first side plate portion via a broken line. A square second side plate, a square third side plate connected to the side end of the second side plate via a broken line, and a side end of the third side plate connected to the side end of the second side plate via a broken line. The lateral side widths of the first side surface portion, the second side surface portion, the third side surface portion, and the fourth side surface portion are the same. A sleeve-like portion formed in a sleeve shape by the first side plate portion, the second side plate portion, the third side plate portion, and the fourth side plate portion, and the lower end of the first side plate portion are connected via a broken line. A first piece, a second piece continuous from the lower end of the second side plate via a broken line, and a lower piece of the third side plate via a broken line, the same as the first side Shape and shape A third piece formed in a size, and a fourth piece connected continuously from the lower end of the fourth side plate part via a broken line, and the first piece and the third piece are A lower end position of a boundary line with an adjacent side plate portion that is an adjacent side plate portion that is provided at an angle of about 45 degrees with respect to the reference broken line and that is connected through a reference broken line that is a broken line that forms a boundary with the side plate portion. A trapezoidal main body having a linear inclined side extending from the vicinity thereof and a side parallel to the first bent line on the opposite side of the reference folding line, and a broken line that is a part of the inclined side from the main body. A projecting piece having two parallel and linear sides that are perpendicular to the reference folding line and a side parallel to the reference folding line on the opposite side of the reference folding line, On the opposite side of the reference polygonal line, the side located on the inside of the two parallel straight sides of the protruding piece and the inclined side The side portions adjacent to each other among the side portions constituting the cutout portion have a cutout portion that forms an angle of less than 180 degrees, and the protruding piece portion of the first piece portion is formed on the adjacent side plate portion. One piece connected from the lower end is bonded to one of the second piece and the fourth piece, and the protruding piece of the third piece is connected from the lower end of the adjacent side plate. In the state where the second piece and the fourth piece are bonded to the other piece, and the packaging box is assembled, the cut piece of the first piece and the cut piece of the second piece And the bottom of the packaging box is formed by hooking each other.

この第４の構成の包装箱においては、組立て状態から折り畳み状態にするには、スリーブ状部を折り畳むことにより、底部を構成する各部がスリーブ状部の内部に畳まれた状態となる。一方、包装箱を折り畳んだ状態から組立て状態にするには、スリーブ状部における隣接する部材が互いに直角となるようにして、開口部を四角形状に形成する。 In the packaging box having the fourth configuration, in order to change from the assembled state to the folded state, by folding the sleeve-like portion, each portion constituting the bottom portion is folded into the sleeve-like portion. On the other hand, in order to change the packaging box from the folded state to the assembled state, the openings are formed in a square shape so that adjacent members in the sleeve-shaped portion are at right angles to each other.

また、第１片部と第３片部における切欠部において、突出片部の該平行な直線状の２つの辺部のうち内側に位置する辺部と傾斜辺部とは、約４５度の角度をなしているので、包装箱の組立て状態においても第１片部と第３片部とが互いに強く掛止され、底部の強度が弱くなることがない。 Moreover, in the notch part in the first piece part and the third piece part, the side part and the inclined side part located on the inner side of the two parallel straight side parts of the projecting piece part have an angle of about 45 degrees. Therefore, even in the assembled state of the packaging box, the first piece portion and the third piece portion are strongly hooked to each other, and the strength of the bottom portion is not weakened.

また、第５には、上記第１から第４までのいずれかの構成において、第１片部の切欠部と第２片部の切欠部とが、突出片部の該２つの辺部のうち内側に位置する辺部と該傾斜辺部との間に基準折れ線と平行な辺部を有し、これら３つの辺部で切欠部が構成されていることを特徴とする。 Further, fifthly, in any one of the first to fourth configurations, the cutout portion of the first piece portion and the cutout portion of the second piece portion are the two side portions of the protruding piece portion. A side portion parallel to the reference broken line is provided between the side portion located on the inner side and the inclined side portion, and a cutout portion is formed by these three side portions.

本考案に基づく包装箱Ａによれば、組立て状態と折畳み状態との間での変形を繰り返して使用しても底部を損傷することがなく、かつ、底部の強度を十分維持することができる。 According to the packaging box A based on this invention, even if it uses repeatedly between an assembly state and a folding state, a bottom part is not damaged and the intensity | strength of a bottom part can fully be maintained.

本考案においては、組立て状態と折畳み状態との間での変形を繰り返して使用しても底部を損傷することがなく、かつ、底部の強度を十分維持することができる包装箱を提供するという目的を以下のようにして実現した。 An object of the present invention is to provide a packaging box that does not damage the bottom even when repeatedly used between the assembled state and the folded state, and that can sufficiently maintain the strength of the bottom. Was realized as follows.

本考案に基づく包装箱Ａは、図１〜図６に示すように構成され、正面部１０（第１側面部）と、右側面部１２（第２側面部）と、支持フラップ１３と、左側面部１４（第４側面部）と、支持フラップ１５と、背面部１６（第３側面部）と、糊代部１８と、上面部２０と、差込み片部２２と、底部３０とを有している。この包装箱Ａは、１枚のシート状のブランク（具体的には、段ボール製（例えば、薄型段ボール製）のブランク）により形成されている。 The packaging box A based on this invention is comprised as shown in FIGS. 1-6, The front part 10 (1st side part), the right side part 12 (2nd side part), the support flap 13, and the left side part 14 (fourth side surface portion), a support flap 15, a back surface portion 16 (third side surface portion), an adhesive margin portion 18, an upper surface portion 20, an insertion piece portion 22, and a bottom portion 30. . The packaging box A is formed of a single sheet-like blank (specifically, a blank made of cardboard (for example, a thin cardboard)).

正面部１０と右側面部１２と左側面部１４と背面部１６は、それぞれが包装箱Ａの側面を形成し、方形状の板状を呈していて、縦方向及び横方向の幅は同一に形成されている。また、糊代部１８は背面部１６の側辺から折れ線を介して連設され、台形状の板状を呈し、右側面部１２の内側に接着されて、正面部１０と右側面部１２と左側面部１４と背面部１６によりスリーブ状部５が形成される。 The front portion 10, the right side surface portion 12, the left side surface portion 14, and the back surface portion 16 each form a side surface of the packaging box A, have a rectangular plate shape, and have the same vertical and horizontal widths. ing. Further, the adhesive margin 18 is connected continuously from the side of the back surface 16 via a broken line, has a trapezoidal plate shape, and is bonded to the inside of the right side surface portion 12 to thereby form the front surface portion 10, the right side surface portion 12, and the left side surface portion. The sleeve-like portion 5 is formed by the back portion 14 and the back portion 16.

また、上面部２０は、背面部１６の上端から折れ線を介して連設され、スリーブ状部５を組み立てた場合の開口部の大きさと略同様の大きさの方形状を呈している。差込み片部２２は、細長長方形状の角部にアールを形成した形状を呈し、上面部２０の先端から折れ線を介して連設され、スリーブ状部５の開口部を上面部２０により閉じる際に、正面部１０の内側に差し込まれる。 Further, the upper surface portion 20 is connected from the upper end of the rear surface portion 16 via a broken line, and has a rectangular shape having a size substantially the same as the size of the opening when the sleeve-like portion 5 is assembled. The insertion piece 22 has a shape in which a rounded corner is formed at the corner of the elongated rectangular shape, is continuously provided from the tip of the upper surface portion 20 via a broken line, and the sleeve portion 5 is closed when the upper surface portion 20 is closed. , Inserted into the front part 10.

また、底部３０は、一対の第１フラップ４０と、第２フラップ６０、６２とから構成され、第１フラップ４０と第２フラップ６０、６２とは、スリーブ状部５を構成する各部における相対する部材の下辺に連設されていて、第１フラップ４０は、正面部１０の下辺から折れ線を介して連設されているともに、背面部１６の下辺から折れ線を介して連設されており、第２フラップ６０（第２片部）は、右側面部１２の下辺から折れ線を介して連設され、第２フラップ６２（第４片部）は、左側面部１４の下辺から折れ線を介して連設されている。２つの第１フラップ４０は、同大同形状に形成されている。 Further, the bottom portion 30 includes a pair of first flaps 40 and second flaps 60 and 62, and the first flaps 40 and the second flaps 60 and 62 are opposed to each other constituting the sleeve-like portion 5. The first flap 40 is connected to the lower side of the member through the broken line from the lower side of the front part 10 and is connected to the lower side of the back part 16 through the broken line. The two flaps 60 (second piece) are connected from the lower side of the right side surface part 12 via a broken line, and the second flap 62 (fourth piece part) is connected from the lower side of the left side surface part 14 via a broken line. ing. The two first flaps 40 are formed in the same shape.

ここで、正面部１０から折れ線を介して連設された第１フラップ４０（第１片部）を例にとって説明すると、第１フラップ４０は、略台形形状を有するフラップ本体４４（本体部）と、フラップ本体４４の一方の傾斜辺から折れ線を介して連設されている突出片部４８とを有している。 Here, the first flap 40 (first piece portion) connected from the front portion 10 via a broken line will be described as an example. The first flap 40 includes a flap main body 44 (main body portion) having a substantially trapezoidal shape. , And a projecting piece portion 48 that is continuous from one inclined side of the flap body 44 via a broken line.

ここで、フラップ本体４４は、台形形状の板状をなし、正面部１０との境界の折れ線４４ａ（基準折れ線）と、該折れ線４４ａと平行をなす先端辺部４４ｂと、折れ線４４ａと先端辺部４４ｂとの間を結ぶ傾斜辺部４４ｃ、４４ｄに囲まれた形状を呈し、傾斜辺部４４ｃは、正面部１０と右側面部１２（隣接側板部）の境界線の下端位置又はその近傍から折れ線４４ａに対して約４５度（丁度４５度としてもよい）の角度（すなわち、鋭角の角度）をなして形成され、この傾斜辺部４４ｃは、フラップ本体４４と突出片部４８との境界位置ではフラップ本体４４と突出片部４８との間の折れ線４８ｇと一致している。また、傾斜辺部４４ｄは、折れ線４４ａと４５度よりも大きい角度をなし、８０〜９０度（具体的には、８５度）の角度をなしている。折れ線４４ａは、正面部１０と第１フラップ４０間の折れ線と一致している。 Here, the flap main body 44 has a trapezoidal plate shape, and includes a fold line 44a (reference fold line) at the boundary with the front portion 10, a tip side portion 44b parallel to the fold line 44a, and a fold line 44a and a tip side portion. The inclined side portion 44c has a shape surrounded by inclined side portions 44c and 44d connecting between the lower end position 44b and the right side surface portion 12 (adjacent side plate portion) at or near the lower end position of the boundary line 44a. Is formed at an angle of about 45 degrees (which may be just 45 degrees) (that is, an acute angle), and the inclined side portion 44c is a flap at the boundary position between the flap body 44 and the protruding piece portion 48. It coincides with a broken line 48g between the main body 44 and the protruding piece 48. Further, the inclined side portion 44d forms an angle larger than 45 degrees with the broken line 44a, and forms an angle of 80 to 90 degrees (specifically, 85 degrees). The polygonal line 44a coincides with the polygonal line between the front portion 10 and the first flap 40.

また、突出片部４８は、フラップ本体４４の傾斜辺部４４ｃから突出して形成され、略台形形状をなし、辺部４８ａ〜４８ｆと折れ線４８ｇに囲まれた形状をなしている。 The protruding piece 48 is formed to protrude from the inclined side portion 44c of the flap body 44, has a substantially trapezoidal shape, and is surrounded by the side portions 48a to 48f and the broken line 48g.

すなわち、辺部４８ａは、フラップ本体４４の傾斜辺部４４ｃに接続され、折れ線４４ａと平行（略平行としてもよい）をなし、切欠部５０を形成すべく短い直線状に形成されている。また、辺部４８ｂは、辺部４８ａの傾斜辺部４４ｃ側とは反対側の端部から連設され、折れ線４４ａに対して直角（略直角としてもよい）に形成されている。また、辺部４８ｃは、辺部４８ｂの辺部４８ａ側とは反対側の端部から連設され、略円弧状に形成されている。また、辺部４８ｄは、辺部４８ｃの辺部４８ｂとは反対側の端部から連設され、折れ線４４ａと平行（略平行としてもよい）に直線状に形成されている。また、辺部４８ｅは、辺部４８ｄの辺部４８ｃ側とは反対側の端部から連設され、略円弧状に形成されている。また、辺部４８ｆは、辺部４８ｅの辺部４８ｄとは反対側の端部から連設され、折れ線４４ａに対して直角（略直角としてもよい）に形成されている。以上のように、突出片部４８は、台形形状の２つの角部にアールを設け、図６における左側の端部に小さな三角形状の突起部（傾斜辺部４４ｃと辺部４８ａとが二辺をなす三角形状の突起部）を有しているといえる。 That is, the side portion 48 a is connected to the inclined side portion 44 c of the flap main body 44, is parallel to the fold line 44 a (may be substantially parallel), and is formed in a short straight line so as to form the notch portion 50. Further, the side portion 48b is continuously provided from an end portion of the side portion 48a opposite to the inclined side portion 44c side, and is formed at a right angle (may be substantially a right angle) with respect to the broken line 44a. Further, the side portion 48c is continuously provided from an end portion of the side portion 48b opposite to the side portion 48a side, and is formed in a substantially arc shape. The side portion 48d is connected to the end portion of the side portion 48c opposite to the side portion 48b, and is formed in a straight line parallel to the fold line 44a (may be substantially parallel). Further, the side portion 48e is continuously provided from an end portion of the side portion 48d opposite to the side portion 48c side, and is formed in a substantially arc shape. Further, the side portion 48f is continuously provided from an end portion of the side portion 48e opposite to the side portion 48d, and is formed at a right angle (may be substantially a right angle) with respect to the broken line 44a. As described above, the protruding piece portion 48 is provided with rounded corners at two corners of the trapezoidal shape, and a small triangular protrusion (the inclined side portion 44c and the side portion 48a have two sides at the left end portion in FIG. It can be said that it has a triangular protrusion).

なお、フラップ本体４４の傾斜辺部４４ｃのスリーブ状部５側の端部から辺部４８ａとの接続位置までの長さは、底部３０の相対する角部間の距離Ｈ（図３参照）の半分又は該半分よりも若干短く形成されている。また、フラップ本体４４の傾斜辺部４４ｃの長さは、底部３０の相対する角部間の距離Ｈの半分よりも大きく形成されている。 Note that the length from the end of the inclined side portion 44c of the flap body 44 on the sleeve-like portion 5 side to the connection position with the side portion 48a is the distance H between the opposite corner portions of the bottom portion 30 (see FIG. 3). Half or slightly shorter than the half. Further, the length of the inclined side portion 44 c of the flap body 44 is formed to be larger than half the distance H between the opposite corner portions of the bottom portion 30.

これにより、第１フラップ４０には、切欠部５０が形成され、この切欠部５０は、フラップ本体４４の傾斜辺部４４ｃ−１（フラップ本体４４の傾斜辺部４４ｃにおける切欠部５０を構成する部分）と突出片部４８の辺部４８ａと辺部４８ｂとで形成された、略三角形状の切欠部となる。また、この切欠部５０において、傾斜辺部４４ｃと辺部４８ｂとは約４５度（丁度４５度としてもよい）の角度をなしている。この切欠部５０を構成する傾斜辺部４４ｃ−１と辺部４８ａと辺部４８ｂのうち互いに隣接する辺部が１８０度未満の角度をなしている。この点は、従来例を示す図１４において、先端辺部１４６ｂ辺部１４６ｄとが１８０度以上の角度をなしている点とは異なる。つまり、１８０度未満の角度をなしているとは、図１４のように奥側に小さな切欠部が設けられていないことを示している。また、辺部４８ｂは、上記「突出片部の該平行な直線状の２つの辺部のうち内側に位置する辺部」となる。 Thereby, the notch part 50 is formed in the 1st flap 40, and this notch part 50 (part which comprises the notch part 50 in the inclination side part 44c-1 of the flap main body 44 (the inclination side part 44c of the flap main body 44). ) And the side part 48a and the side part 48b of the protruding piece part 48, a substantially triangular cutout part is formed. Further, in the cutout portion 50, the inclined side portion 44c and the side portion 48b form an angle of about 45 degrees (may be just 45 degrees). Of the inclined side portion 44c-1, the side portion 48a, and the side portion 48b constituting the cutout portion 50, adjacent side portions form an angle of less than 180 degrees. This is different from the point that the tip side 146b and the side 146d form an angle of 180 degrees or more in FIG. 14 showing the conventional example. That is, the angle of less than 180 degrees indicates that no small notch is provided on the back side as shown in FIG. Further, the side portion 48b is the “side portion located on the inner side of the two parallel straight side portions of the protruding piece portion”.

背面部１６から折れ線を介して連設された第１フラップ４０（第３片部）も正面部１０から折れ線を介して連設された第１フラップ４０と同様の構成である。 The 1st flap 40 (3rd piece part) provided in a row from the back part 16 via the broken line is the structure similar to the 1st flap 40 provided in a line from the front part 10 via the broken line.

また、第２フラップ６０は、略台形形状を呈し、辺部６０ａ〜６０ｇとで囲まれた形状を呈し、辺部６０ｇは、右側面部１２と第２フラップ６０間の折れ線と一致している。 The second flap 60 has a substantially trapezoidal shape and is surrounded by the side portions 60 a to 60 g, and the side portion 60 g coincides with a broken line between the right side surface portion 12 and the second flap 60.

辺部６０ａは、折れ線６０ｇに対して傾斜しており、辺部６０ｇに対して４５度よりも大きい角度（６５〜７５度（具体的には、７０度））をなしている。また、辺部６０ｂは、辺部６０ａの辺部６０ｇとは反対側の端部から連設され、略円弧状に形成されている。また、辺部６０ｃは、辺部６０ｂの辺部６０ａとは反対側の端部から連設され、辺部６０ｇと平行（略平行としてもよい）に直線状に形成されている。また、辺部６０ｄは、辺部６０ｃの辺部６０ｂとは反対側の端部から連設され、略円弧状に形成されている。また、辺部６０ｅは、辺部６０ｄの辺部６０ｃとは反対側の端部から連設され、辺部６０ｇに対して直角（略直角としてもよい）に形成されている。また、辺部６０ｆは、辺部６０ｅの端部と辺部６０ｇの端部間に形成され、辺部６０ｇに対して傾斜した（約４５度（丁度４５度としてもよい）の角度で傾斜した）直線状を呈している。この第２フラップ６０は、略台形形状に辺部６０ｇに対して傾斜した辺部６０ａとは反対側が略三角形状に切り欠かれた構成であり、その切欠部分は、辺部６０ｇに対して直角な辺部６０ｅと辺部６０ｇに対して傾斜した辺部６０ｆにより構成されているといえる。 The side part 60a is inclined with respect to the broken line 60g and forms an angle larger than 45 degrees (65 to 75 degrees (specifically, 70 degrees)) with respect to the side part 60g. Moreover, the side part 60b is connected from the edge part on the opposite side to the side part 60g of the side part 60a, and is formed in the substantially circular arc shape. Further, the side portion 60c is provided continuously from an end portion of the side portion 60b opposite to the side portion 60a, and is formed in a straight line parallel to (or substantially parallel to) the side portion 60g. Further, the side portion 60d is connected to the end portion of the side portion 60c opposite to the side portion 60b, and is formed in a substantially arc shape. Further, the side portion 60e is connected to the end portion of the side portion 60d opposite to the side portion 60c, and is formed at a right angle (may be substantially a right angle) with respect to the side portion 60g. The side portion 60f is formed between the end portion of the side portion 60e and the end portion of the side portion 60g, and is inclined at an angle of about 45 degrees (may be just 45 degrees) with respect to the side portion 60g. ) It is linear. The second flap 60 has a substantially trapezoidal shape with a side opposite to the side part 60a inclined with respect to the side part 60g cut out in a substantially triangular shape, and the notch part is perpendicular to the side part 60g. It can be said that it is comprised by the side part 60f inclined with respect to the side part 60e and the side part 60g.

また、第２フラップ６２は、略台形形状を呈し、辺部６２ａ〜６２ｆとで囲まれた形状を呈し、辺部６２ｆは、左側面部１４と第２フラップ６２間の折れ線と一致している。 The second flap 62 has a substantially trapezoidal shape and is surrounded by the side portions 62 a to 62 f, and the side portion 62 f coincides with a broken line between the left side surface portion 14 and the second flap 62.

辺部６２ａは、辺部６２ｆに対して傾斜しており、辺部６２ｆに対して４５度よりも大きい角度（６５〜７５度（具体的には、７０度））をなしている。この角度は、辺部６０ａが辺部６０ｇとなす角度と同一である。また、辺部６２ｂは、辺部６２ａの辺部６２ｆとは反対側の端部から連設され、略円弧状に形成されている。また、辺部６２ｃは、辺部６２ｂの辺部６２ａとは反対側の端部から連設され、辺部６２ｆと平行（略平行としてもよい）に直線状に形成されている。また、辺部６２ｄは、辺部６２ｄの端部と辺部６２ｆの端部間に形成され、辺部６２ｆに対して傾斜した（１１５〜１２５度の角度で傾斜した）直線状を呈している。以上のように、第２フラップ６２は、略台形形状の先端の２つの角部にアールを形成した形状をなしているといえる。 The side part 62a is inclined with respect to the side part 62f and forms an angle larger than 45 degrees (65 to 75 degrees (specifically, 70 degrees)) with respect to the side part 62f. This angle is the same as the angle formed by the side portion 60a and the side portion 60g. Further, the side portion 62b is connected to the end portion of the side portion 62a opposite to the side portion 62f, and is formed in a substantially arc shape. The side 62c is connected from the end of the side 62b opposite to the side 62a, and is formed in a straight line parallel to (or substantially parallel to) the side 62f. The side part 62d is formed between the end part of the side part 62d and the end part of the side part 62f, and has a linear shape inclined with respect to the side part 62f (inclined at an angle of 115 to 125 degrees). . As described above, it can be said that the second flap 62 has a shape in which rounds are formed at the two corners of the substantially trapezoidal tip.

包装箱Ａにおいては、正面部１０に連設された第１フラップ４０の突出片部４８の上面側が第２フラップ６０の下面に接着され、特に、突出片部４８の辺部４８ｆが辺部６０ｇ（右側面部１２と第２フラップ６０間の折れ線）と略平行になるように接着される。また、背面部１６に連設された第１フラップ４０の突出片部４８の上面側が第２フラップ６２の下面に接着され、特に、突出片部４８の辺部４８ｆが辺部６２ｆ（左側面部１４と第２フラップ６２間の折れ線）と略平行になるように接着される。 In the packaging box A, the upper surface side of the protruding piece portion 48 of the first flap 40 connected to the front surface portion 10 is bonded to the lower surface of the second flap 60, and in particular, the side portion 48f of the protruding piece portion 48 is the side portion 60g. It is bonded so as to be substantially parallel to the (fold line between the right side surface portion 12 and the second flap 60). Further, the upper surface side of the protruding piece portion 48 of the first flap 40 connected to the back surface portion 16 is bonded to the lower surface of the second flap 62, and in particular, the side portion 48f of the protruding piece portion 48 is the side portion 62f (the left side surface portion 14). And a second folding line between the second flaps 62).

包装箱Ａが組み立てられている状態では、図３、図４に示すように、第１フラップ４０の切欠部５０同士が互いに掛止した状態となっていて、底部３０を強固に平面状に維持している。そして、図３に示すように、２つの折れ線４８ｇは略一直線状をなすとともに、図４に示すように、２つのフラップ本体４４の傾斜辺部４４ｃ−１も略一直線状をなしている。 In a state where the packaging box A is assembled, as shown in FIGS. 3 and 4, the cutout portions 50 of the first flap 40 are hooked to each other, and the bottom portion 30 is firmly maintained in a flat shape. is doing. As shown in FIG. 3, the two bent lines 48g are substantially straight, and as shown in FIG. 4, the inclined side portions 44c-1 of the two flap bodies 44 are also substantially straight.

包装箱Ａにおいて、組立て状態から折り畳み状態にするには、スリーブ状部５を折り畳むことにより、底部３０を構成する各部がスリーブ状部５の内部に畳まれた状態となる。すなわち、組立て状態から折り畳み状態に至る途中においては、右側面部１２を正面部１０側に傾動させるとともに、左側面部１４を背面部１６側に傾動させると、その底面視は図７に示すようになり、さらに、図８に示すような形態となり、包装箱Ａを折り畳んだ状態では図９に示すような状態となる。その際、第１フラップ４０においては、突出片部４８がフラップ本体４４に対して折れ線を介して折曲した状態となる。 In the packaging box A, in order to change from the assembled state to the folded state, by folding the sleeve-like part 5, each part constituting the bottom part 30 is folded into the sleeve-like part 5. That is, in the middle from the assembled state to the folded state, when the right side surface portion 12 is tilted to the front surface portion 10 side and the left side surface portion 14 is tilted to the back surface portion 16 side, the bottom view is as shown in FIG. Furthermore, it becomes a form as shown in FIG. 8, and when the packaging box A is folded, it becomes a state as shown in FIG. In that case, in the 1st flap 40, the protrusion piece part 48 will be in the state bent via the broken line with respect to the flap main body 44. FIG.

なお、包装箱Ａを折り畳んだ状態から組立て状態にするには、スリーブ状部５における隣接する部材が互いに直角となるようにして、開口部を四角形状に形成する。すると、底面視においては、図８の状態から図７の状態となり、さらに、図３の状態となる。 In order to change the packaging box A from the folded state to the assembled state, the openings are formed in a square shape so that adjacent members in the sleeve-like portion 5 are perpendicular to each other. Then, in the bottom view, the state shown in FIG. 8 is changed to the state shown in FIG. 7, and further the state shown in FIG.

本実施例の包装箱Ａにおいては、切欠部５０を構成する傾斜辺部４４ｃ−１が折れ線４８ｇの延長線上にあり、上記のように、包装箱Ａが組み立てられている状態では、図４に示すように、２つのフラップ本体４４の傾斜辺部４４ｃ−１も略一直線状をなしていて、従来における図１４に示すように突出していないので、組立て状態と折り畳み状態との間で変形するに際して、傾斜辺部４４ｃ−１同士は接触するものの、強く接触することがなく、フラップ本体４４における傾斜辺部４４ｃ−１の領域が損傷することがなく、組立て状態と折り畳み状態との間で繰り返し変形してもフラップ本体４４が損傷することがない。 In the packaging box A of the present embodiment, the inclined side portion 44c-1 constituting the cutout portion 50 is on the extension line of the broken line 48g, and in the state where the packaging box A is assembled as described above, FIG. As shown, the inclined side portions 44c-1 of the two flap main bodies 44 are also substantially straight and do not protrude as shown in FIG. 14 in the prior art, so when deformed between the assembled state and the folded state. Although the inclined side portions 44c-1 are in contact with each other, they are not in strong contact with each other, the region of the inclined side portion 44c-1 in the flap main body 44 is not damaged, and is repeatedly deformed between the assembled state and the folded state. Even so, the flap body 44 is not damaged.

また、第１フラップ４０において、傾斜辺部４４ｃ−１と辺部４８ｂとは約４５度をなしているので、包装箱Ａの組立て状態においても２つの第１フラップ４０が互いに強く掛止され、底部３０の強度が弱くなることがない。 Moreover, in the 1st flap 40, since the inclination side part 44c-1 and the side part 48b comprise about 45 degree | times, also in the assembly state of the packaging box A, the two 1st flaps 40 are latched strongly mutually, The strength of the bottom 30 does not become weak.

以上のように、本実施例の包装箱Ａにおいては、組立て状態と折畳み状態との間での変形を繰り返して使用しても底部を損傷することがなく、かつ、底部３０の強度を十分維持することができる。 As described above, in the packaging box A of the present embodiment, the bottom portion is not damaged even if the deformation between the assembled state and the folded state is repeatedly used, and the strength of the bottom portion 30 is sufficiently maintained. can do.

また、上記従来の包装箱Ｂにおいては、図１４に示すように、大きな切欠部１５０にさらに小さな切欠部１５２が設けられていて、組立て状態では、この小さな切欠部１５２同士が掛止する構成であるので、包装箱の製造時に底部の貼りずれがわずかでも生じると底部を平板状にするのが困難であるが、本実施例の包装箱Ａにおいては、大きな切欠部５０が掛止する構成であるので、包装箱の製造時に底部の貼りずれがわずかに生じても底部を平板状に構成することができ、底部の貼りずれに強い構成であるといえる。また、底部を平板状に構成できるので、底部にシール等のシート状部材を貼りやすくなる。 Moreover, in the said conventional packaging box B, as shown in FIG. 14, the further small notch part 152 is provided in the large notch part 150, and it is the structure which these small notch parts 152 latch in an assembly state. Therefore, it is difficult to make the bottom flat when there is even a slight deviation of the bottom during manufacture of the packaging box. However, in the packaging box A of this embodiment, the large notch 50 is hooked. Therefore, even if a slight misalignment of the bottom occurs at the time of manufacturing the packaging box, the bottom can be configured in a flat plate shape, and it can be said that the structure is strong against the misalignment of the bottom. In addition, since the bottom portion can be configured in a flat plate shape, a sheet-like member such as a seal can be easily attached to the bottom portion.

なお、上記の説明においては、突出片部４８において、辺部４８ａが設けられているとしたが、これは、包装箱Ａを構成するブランクの厚みを考慮したものであり、この辺部４８ａの構成を省略して、傾斜辺部４４ｃ−１と辺部４８ｂとで切欠部５０を構成してもよい。 In the above description, the projecting piece 48 is provided with the side 48a. However, this is in consideration of the thickness of the blank constituting the packaging box A, and the configuration of the side 48a. May be omitted, and the notched portion 50 may be configured by the inclined side portion 44c-1 and the side portion 48b.

また、正面部１０と右側面部１２と左側面部１４と背面部１６において、横方向の幅が同一であるとして説明したが、正面部１０と背面部１６の横方向の幅が同じで、右側面部１２と左側面部１４の幅が同じに形成されていればよい。その場合に、正面部１０及び背面部１６の横方向の幅と、右側面部１２及び左側面部１４の横方向の幅とが異なる場合には、傾斜辺部４４ｃは折れ線４４ａに対して約４５度とならないが、少なくとも鋭角の角度をなすことになる。 Moreover, although the front part 10, the right side part 12, the left side part 14, and the back part 16 have been described as having the same lateral width, the front part 10 and the back part 16 have the same lateral width, and the right side part. 12 and the left side part 14 should just be formed in the same width | variety. In this case, when the lateral width of the front surface portion 10 and the back surface portion 16 is different from the lateral width of the right side surface portion 12 and the left side surface portion 14, the inclined side portion 44c is about 45 degrees with respect to the broken line 44a. However, at least an acute angle will be formed.

本考案の実施例に基づく包装箱を示す上方斜視図である。It is an upper perspective view which shows the packaging box based on the Example of this invention. 本考案の実施例に基づく包装箱を示す下方斜視図である。It is a downward perspective view which shows the packaging box based on the Example of this invention. 本考案の実施例に基づく包装箱を示す底面図である。It is a bottom view which shows the packaging box based on the Example of this invention. 本考案の実施例に基づく包装箱の内側の状態を示す平面図である。It is a top view which shows the state inside the packaging box based on the Example of this invention. 本考案の実施例に基づく包装箱の展開図である。It is an expanded view of the packaging box based on the Example of this invention. 図５における要部拡大図である。It is a principal part enlarged view in FIG. 包装箱を折り畳む途中の状態を示す底面図である。It is a bottom view which shows the state in the middle of folding a packaging box. 包装箱を折り畳む途中の状態を示す底面図である。It is a bottom view which shows the state in the middle of folding a packaging box. 包装箱を折り畳んだ状態を示す斜視図である。It is a perspective view which shows the state which folded the packaging box. 従来の包装箱を示す底面図であるIt is a bottom view which shows the conventional packaging box. 従来の包装箱の内側の状態を示す平面図である。It is a top view which shows the state inside the conventional packaging box. 従来の包装箱の折り畳む途中の状態を示す底面図である。It is a bottom view which shows the state in the middle of folding of the conventional packaging box. 従来の包装箱を示す展開図である。It is an expanded view which shows the conventional packaging box. 図１３における要部拡大図である。It is a principal part enlarged view in FIG.

Explanation of symbols

Ａ、Ｂ包装箱
５スリーブ状部
１０正面部
１２右側面部
１４左側面部
１６背面部
２０上面部
３０底部
４０第１フラップ
４４フラップ本体
４８突出片部
５０切欠部
６０、６２第２フラップ A, B Packaging box 5 Sleeve-like part 10 Front part 12 Right side part 14 Left side part 16 Back part 20 Upper part 30 Bottom part 40 First flap 44 Flap body 48 Projecting piece part 50 Notch part 60, 62 Second flap

Claims

A packaging box,
A sleeve-like portion that forms the side surface of the packaging box, a square-shaped first side plate portion, a square-shaped second side plate portion that is connected to a side end of the first side plate portion via a broken line, and a second side plate portion A rectangular third side plate portion connected to the side end of the third side plate via a broken line, and a rectangular fourth side plate portion connected to the side end of the third side plate portion via a broken line. In the assembled state of the box, a sleeve-like portion formed into a sleeve shape by the first side plate portion, the second side plate portion, the third side plate portion, and the fourth side plate portion;
A first piece continuous from the lower end of the first side plate via a broken line;
A second piece connected continuously from the lower end of the second side plate part via a broken line;
A third piece continuous from the lower end of the third side plate portion via a broken line;
A fourth piece continuously provided via a broken line from the lower end of the fourth side plate,
Have
The first piece portion and the third piece portion are connected to each other through a reference fold line that is a fold line that forms a boundary with the side plate portion, and are adjacent side plate portions that form an acute angle with the reference fold line and are adjacent to each other. A main body part having a linear inclined side part extending from the lower end position of the boundary line with the side plate part or the vicinity thereof, and a broken line that is a part of the inclined side part from the main body part, and the reference folding line A protruding piece portion having two parallel and straight sides perpendicular to each other, and on the opposite side of the reference folding line, the inner side of the two parallel straight sides of the protruding piece portion A cutout portion having a side portion and the inclined side portion, and the side portions adjacent to each other among the side portions constituting the cutout portion have a cutout portion forming an angle of less than 180 degrees,
The protruding piece portion of the first piece portion is a piece portion continuously provided from the lower end of the adjacent side plate portion, and is bonded to one of the second piece portion and the fourth piece portion, and the third piece portion The protruding piece portion is a piece continuously provided from the lower end of the adjacent side plate portion, and is bonded to the other piece portion of the second piece portion and the fourth piece portion,
In the assembled state of the packaging box, the bottom portion of the packaging box is configured by the cutout portion of the first piece and the cutout portion of the second piece being engaged with each other.

The lateral widths of the first side surface portion, the second side surface portion, the third side surface portion, and the fourth side surface portion constituting the sleeve-shaped portion are the same, and in the first piece portion, the inclined side portion is relative to the first broken line. 2. The packaging box according to claim 1, wherein an angle of about 45 degrees is formed, and an inclined side portion forms an angle of about 45 degrees with respect to the second broken line in the second piece portion.

The packaging box according to claim 1 or 2, wherein the first main part of the first piece and the second main part of the second piece have a trapezoidal shape.

A packaging box,
A sleeve-like portion that forms the side surface of the packaging box, a square-shaped first side plate portion, a square-shaped second side plate portion that is connected to a side end of the first side plate portion via a broken line, and a second side plate portion A rectangular third side plate portion connected to the side end of the third side plate portion via a broken line, and a rectangular fourth side plate portion connected to the side end of the third side plate portion via a broken line, The lateral widths of the one side surface portion, the second side surface portion, the third side surface portion, and the fourth side surface portion are the same, and in the assembled state of the packaging box, the first side plate portion, the second side plate portion, and the third side portion. A sleeve-like portion formed into a sleeve shape by the side plate portion and the fourth side plate portion;
A first piece continuous from the lower end of the first side plate via a broken line;
A second piece connected continuously from the lower end of the second side plate part via a broken line;
A third piece portion connected continuously from the lower end of the third side plate portion via a broken line and formed in the same shape and size as the first side portion;
A fourth piece continuously provided via a broken line from the lower end of the fourth side plate,
Have
The first piece portion and the third piece portion are connected to each other through a reference fold line that is a fold line that forms a boundary with the side plate portion, and at an adjacent side plate portion that forms an angle of about 45 degrees with respect to the reference fold line. A trapezoidal main body having a linear inclined side extending from or near the lower end position of a boundary line with an adjacent side plate and a side parallel to the first folding line on the opposite side of the reference folding line; Are connected to each other through a broken line that is a part of the inclined side portion, and are parallel to each other and perpendicular to the reference folding line, and a side parallel to the reference folding line on the opposite side of the reference folding line And a notch having a side located on the inner side of the two parallel straight sides of the protruding piece and the inclined side on the opposite side of the reference folding line. Of the sides constituting the notch, the sides adjacent to each other form an angle of less than 180 degrees Has,
The protruding piece portion of the first piece portion is a piece portion continuously provided from the lower end of the adjacent side plate portion, and is bonded to one of the second piece portion and the fourth piece portion, and the third piece portion The protruding piece portion is a piece continuously provided from the lower end of the adjacent side plate portion, and is bonded to the other piece portion of the second piece portion and the fourth piece portion,
In the assembled state of the packaging box, the bottom portion of the packaging box is configured by the cutout portion of the first piece and the cutout portion of the second piece being engaged with each other.

The side parallel to the reference folding line between the side part located on the inside of the two side parts of the projecting piece part and the sloped side part of the cutout part of the first piece part and the cutout part of the second piece part The packaging box according to claim 1, 2, 3, or 4, wherein a cutout portion is formed by these three sides.